42103311553 has 4 divisors (see below), whose sum is σ = 42238692288. Its totient is φ = 41967930820.

The previous prime is 42103311529. The next prime is 42103311557. The reversal of 42103311553 is 35511330124.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42103311553 - 2⁵ = 42103311521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42103311557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67689901 + ... + 67690522.

It is an arithmetic number, because the mean of its divisors is an integer number (10559673072).

Almost surely, 2^42103311553 is an apocalyptic number.

It is an amenable number.

42103311553 is a deficient number, since it is larger than the sum of its proper divisors (135380735).

42103311553 is a wasteful number, since it uses less digits than its factorization.

42103311553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135380734.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 42103311553 its reverse (35511330124), we get a palindrome (77614641677).

The spelling of 42103311553 in words is "forty-two billion, one hundred three million, three hundred eleven thousand, five hundred fifty-three".